The immune system is the body’s way of protecting itself from infection and disease. Smoking compromises the immune system, making smokers more likely to have respiratory infections.
Smoking also causes several autoimmune diseases, including Crohn’s disease and rheumatoid arthritis. It may also play a role in periodic flare-ups of signs and symptoms of autoimmune diseases. Smoking doubles your risk of developing rheumatoid arthritis.
Smoking has recently been linked to type two diabetes, also known as adult-onset diabetes. Smokers are 30% to 40% more likely to develop type two diabetes than nonsmokers. Additionally, the more cigarettes an individual smokes, the higher the risk for diabetes.
- Harms nearly every organ of the body
- Causes many diseases and reduces the health of smokers in general
Quitting smoking lowers your risk for smoking-related diseases and can add years to your life.
Smoking is the leading preventable cause of death in the United States.
- Cigarette smoking causes more than 480,000 deaths each year in the United States. This is about one in five deaths.
- Smoking causes more deaths each year than all of these combined:
- Human immunodeficiency virus (HIV)
- Illegal drug use
- Alcohol use
- Motor vehicle injuries
- Firearm-related incidents
- More than 10 times as many U.S. citizens have died prematurely from cigarette smoking than have died in all the wars fought by the United States during its history.
- Smoking causes about 90% (or 9 out of 10) of all lung cancer deaths in men and women. More women die from lung cancer each year than from breast cancer.
- About 80% (or 8 out of 10) of all deaths from chronic obstructive pulmonary disease (COPD) are caused by smoking.
- Cigarette smoking increases risk for death from all causes in men and women.
- The risk of dying from cigarette smoking has increased over the last 50 years in men and women in the United States.
Smokers are more likely than nonsmokers to develop heart disease, stroke, and lung cancer.
- Smoking is estimated to increase the risk—
- For coronary heart disease by 2 to 4 times
- For stroke by 2 to 4 times
- Of men developing lung cancer by 25 times
- Of women developing lung cancer by 25.7 times
- Smoking causes diminished overall heath, such as self-reported poor health, increased absenteeism from work, and increased health care utilization and cost.
Smokers are at greater risk for diseases that affect the heart and blood vessels (cardiovascular disease).
- Smoking causes stroke and coronary heart disease—the leading causes of death in the United States.
- Even people who smoke fewer than five cigarettes a day can have early signs of cardiovascular disease.
- Smoking damages blood vessels and can make them thicken and grow narrower. This makes your heart beat faster and your blood pressure go up. Clots can also form.
- A heart attack occurs when a clot blocks the blood flow to your heart. When this happens, your heart cannot get enough oxygen. This damages the heart muscle, and part of the heart muscle can die.
- A stroke occurs when a clot blocks the blood flow to part of your brain or when a blood vessel in or around your brain bursts.
- Blockages caused by smoking can also reduce blood flow to your legs and skin.
Smoking can cause lung disease by damaging your airways and the small air sacs (alveoli) found in your lungs